Question

Problem 1 (20 points) During a compression test, a cylindrical specimen that has a height of 100 mm and a diameter of 70 mm is compressed between frictionless platens to a

final height of 75 mm. The specimen is made of aluminum alloy annealed. Assuming uniform deformation and volume constancy, calculate the following: A. The engineering strain and true strain B. The true stress. Note: Refer to your textbook regarding more information about the material C. The load required to compress the specimen to the final height